package com.javaxiaobear.base.common.utils.file;

import com.javaxiaobear.base.common.constant.Constants;
import com.javaxiaobear.base.common.utils.StringUtils;
import com.javaxiaobear.base.framework.config.ProjectConfig;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Arrays;
import org.apache.poi.util.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 图片处理工具类
 *
 * @author javaxiaobear
 */
public class ImageUtils {
  private static final Logger log = LoggerFactory.getLogger(ImageUtils.class);

  public static byte[] getImage(String imagePath) {
    InputStream is = getFile(imagePath);
    try {
      return IOUtils.toByteArray(is);
    } catch (Exception e) {
      log.error("图片加载异常 {}", e);
      return null;
    } finally {
      IOUtils.closeQuietly(is);
    }
  }

  public static InputStream getFile(String imagePath) {
    try {
      byte[] result = readFile(imagePath);
      result = Arrays.copyOf(result, result.length);
      return new ByteArrayInputStream(result);
    } catch (Exception e) {
      log.error("获取图片异常 {}", e);
    }
    return null;
  }

  /**
   * 读取文件为字节数据
   *
   * @param url 地址
   * @return 字节数据
   */
  public static byte[] readFile(String url) {
    InputStream in = null;
    try {
      if (url.startsWith("http")) {
        // 网络地址
        URL urlObj = new URL(url);
        URLConnection urlConnection = urlObj.openConnection();
        urlConnection.setConnectTimeout(30 * 1000);
        urlConnection.setReadTimeout(60 * 1000);
        urlConnection.setDoInput(true);
        in = urlConnection.getInputStream();
      } else {
        // 本机地址
        String localPath = ProjectConfig.getProfile();
        String downloadPath =
            localPath + StringUtils.substringAfter(url, Constants.RESOURCE_PREFIX);
        in = new FileInputStream(downloadPath);
      }
      return IOUtils.toByteArray(in);
    } catch (Exception e) {
      log.error("获取文件路径异常", e);
      return null;
    } finally {
      IOUtils.closeQuietly(in);
    }
  }
}
